![]() A lower focal length, like 28 mm, gives us a wide angle of view. The focal length helps us categorize lens types. For a 50 mm prime lens, the focal point is 50 mm in front of the sensor. ![]() And from the focal point, we can determine the lens’s focal length.Ī focal length is the distance between the focal point and the sensor. The glass elements direct the light to a single point in front of the camera sensor or film. It means they see more or less of the scene in front of you. But also, the different types of lenses have a wider or narrower field of view. This is partly done through the aperture settings. The camera lens directs the light and determines how much passes through. And the camera lens channels the light in the right direction, bringing it to the film strip or digital sensor. The camera needs the light from the scene to make an image.
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